21 lines
562 B
C++
21 lines
562 B
C++
/* This file is part of the mp project.
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* Copyright (c) 2020 MerryMage
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* SPDX-License-Identifier: 0BSD
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*/
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#pragma once
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#include <type_traits>
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#include <mp/metavalue/value.h>
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namespace mp {
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/// Conditionally select between types T and F based on boolean metavalue V
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template<class V, class T, class F>
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using logic_if = std::conditional_t<bool(V::value), T, F>;
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/// Conditionally select between metavalues T and F based on boolean metavalue V
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template<class V, class TV, class FV>
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constexpr auto logic_if_v = logic_if<V, TV, FV>::value;
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} // namespace mp
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